Features: 1) Vertical type 2) Hoop is used to fix and seal FOSC cover and base 3) Provided with 4 fiber cable inlet/outlet ports and 1 large oval port which can accommodate 2 pieces of fiber cables with max. diameter 35mm simultaneously. While straight-through fiber cable is for branching application, fibers not cutting off are for straight-through after being fixed and winded, fibers cutting off are for branching after fusion splicing with fibers of other branching fiber cables 4) Simple installation 5) FOSC is suitable for protecting fiber cable splices in straight- through and branching applications 6) Can be placed in aerial, underground, wall-mounting and duct- mounting applications 7) Based on an advanced formula plastic parts are made of injection-molded, high-strength engineering plastic PC by numerical control equipment 9) Can effectively prevent products from aging caused by coldness, heat, oxygen and ultraviolet radiation 10) The strong housing and main components provide fire resistant, waterproof, and quakeproof properties while protecting splices during pulling, torsioning and impacting 11) Ensures long-term reliability and usage 12) Works under ambient temperature from –40 to 60o 13) Advanced internal structure design 14) Easy and fast to fix fiber cable 15) Easy to re-enter, and never requires re-entry kits 16) The closure is spacious enough for winding and storing fibers 17) With Fiber Optic Splice Tray (FOSTs), Slide-In-Lock and its opening angle is above 90 degrees 19) The curved diameter meets the international standard 20) Easy and fast to increase and reduce FOSTs 21) Innovative elastic integrated seal fitting 22) The FOSC base is provided with an oval inlet/outlet tube, 24) Easy and convenient for installation, maintenance and reuse 25) The earthing deriving device can be installed on the housing of FOSC for deriving metallic parts of fiber cable for earthing connection 26) Pressure testing valve can be installed as well for pressure testing and sealing testing after injecting air 27) Outer dimensions: 495mmx 220mm 28) Consists of one set of elastic integrated seal fitting with 7 inlet/outlet ports